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Network L2 Admin Juniper Certified

Tata Consultancy Services
Posted on
Tata Consultancy Services logo

Experience
4 - 9 yrs
Salary (CTC)
₹5.9L - ₹7.7L
Job Location
Mumbai, India
Vacancy
1
Designation
Network Administrator 2
Job Type
ONSITE

Job Description

Dear Candidate,

Greetings from TATA Consultancy Services!!

Thank you for expressing your interest in exploring a career possibility with the TCS Family.

Hiring For:- Network Juniper (Certified)

Location: Mumbai

Experience: 4 to 9yrs


1. Role Overview

  • Provide L2 network support for Juniper-based infrastructure (LAN/WAN/Firewall)
  • Handle advanced troubleshooting, configuration, and incident resolution
  • Ensure high availability, performance, and security of network environment

2. Key Responsibilities

A. Network Operations & Support

  • Manage and support Juniper devices (MX, EX, QFX, SRX series)
  • Perform configuration, monitoring, and maintenance of routers/switches/firewalls
  • Handle L2 incidents, service requests, and problem tickets
  • Work with L1 for escalation and coordinate with L3 for complex issues [linkedin.com]

B. Troubleshooting & Incident Management

  • Perform advanced troubleshooting of network issues (routing, switching, firewall, VPN)
  • Conduct root cause analysis (RCA) and implement corrective actions
  • Ensure incident resolution within SLA timelines

C. Configuration & Change Management

  • Implement network configuration changes (VLAN, routing, subnetting, ACLs)
  • Execute standard changes as per CAB / SOP
  • Participate in firmware upgrades, patching, and DR drills

D. Monitoring & Performance Optimization

  • Monitor network using tools like SolarWinds, Nagios, PRTG
  • Analyze performance metrics and optimize network throughput
  • Maintain uptime and network health

E. Security & Compliance

  • Configure and manage firewall policies (Juniper SRX)
  • Ensure security through VPN, ACLs, and filtering rules
  • Monitor and respond to network security events

F. Documentation & Reporting

  • Maintain:
    • Network diagrams
    • Configuration backups
    • SOPs / Knowledge base
  • Provide incident reports, RCA, and audit compliance documentation

3. Technical Skills Required

Core Networking

  • Strong knowledge of:
    • TCP/IP, OSI model, DNS, DHCP
    • Routing protocols (OSPF, BGP, Static)
    • Switching (VLAN, STP, trunking)

Juniper Technologies

  • Hands-on experience with:
    • Junos OS
    • Juniper product families:
      • MX (Routing)
      • EX/QFX (Switching)
      • SRX (Firewall)
  • Knowledge of Junos CLI and troubleshooting commands

Network Security

  • Firewall configuration (SRX/Palo Alto optional)
  • VPN (IPSec/SSL)
  • Basic IDS/IPS concepts

Tools & Monitoring

  • Network monitoring tools (SolarWinds/Nagios/PRTG)
  • Packet analysis (Wireshark optional)

4. Certifications (Preferred / Mandatory)

  • JNCIA / JNCIS (Juniper Certifications)
  • ITIL Foundation (good to have)
  • Comparable Cisco certification (CCNA) – added advantage

5. Experience

  • 5–8 years experience in network operations
  • Minimum 5–8 years hands-on with Juniper environment
  • Experience in data center / enterprise / BFSI environment preferred

6. Soft Skills

  • Strong analytical & troubleshooting skills
  • Good communication and stakeholder management
  • Ability to work in 24x7 support model
  • Documentation and process adherence mindset

7. KPIs / Performance Metrics

  • Incident resolution within SLA (MTTR)
  • Network uptime and availability %
  • Change success rate
  • Reduction in repeat incidents

Compliance & audit readiness